Modem Cable Pin-Out - HP 3000 Series Handbook

Note
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For HP Internal Use Only
Table 4-9. HP 372128 Switch Configuration
Sw1tc Posibo:n Description
S1 down
S2 down
Computer mode operation (HP command set)
S3 up
S4 down Primary channel
S5 down 1 start, 8 data and 1 stop
S6
down
S7
down
Error correction disabled
S8
up
No Flow control
S9
up
S10 down DSR/CTS/CD to RS-232-C definition
Sll up
S12 up DTR behaves to RS-232-C definition
Although this modem claims to be able to dial using V.25bis, it only uses the
V .25bis line discipline. The command set does not match the set specified in
the V .25bis specification.
Modem Cable Pin-out
The following pin-out is for the 92219Q cable, which is most often used to connect the Access
Port to the support modem.
4-24 Configuration